What is package.json in Node.js? Features, Uses and Examples

Image
  Introduction to package.json  in Node.js When developers start working with Node.js , they often create projects using different libraries, frameworks, and tools. Managing all these project requirements manually can become difficult. This is where the package.json file becomes useful. The package.json file is an important part of almost every Node.js project. It stores essential information about an application, including its name, version, description, dependencies , development tools, and scripts. 2. What is package.json The package.json file is a JSON (JavaScript Object Notation) file used in Node.js projects to store project information and configuration. It works as a project information file that describes the application and tells npm which packages, scripts, and other settings are required. Every Node.js project can have its own package.json file. It is generally located in the root directory of the project. For example , consider a project named m...
Post a Comment

how to use the id selector in html and css

how to use the id selector in html and css

how to use the id selector in html and css

This Blog You Will Learn 

ஃ What is ID Selector ?

ஃ Syntax of HTML <id> tag

ஃ structure diagram examples

ஃ Explain Program

ஃ Output

What is ID Selector ?

✅ID selector is important tools in styling css specific elements in your web page.

✅class selectors used multiple element.

✅ ID Selector unique  element by id attribute.

✅ID selector Symbol  starts  hash  symbol #  .

✅ID selector unique on the entire page.

✅id selector value more than once document.

What is CSS ID Selector? Syntax, Examples

Syntax of HTML <id> tag


<element id="nuiquename">
.
. content write
. 
</element> Attribute provide additional information about element 
  1. id attribute unique on entire webpage
  2. id attribute name cannot start with number.
  3. id attribute name cannot space allowed.
  4. id attribute name no allowed space and use - or _ symbols

ஃ structure diagram examples


how to use the id selector in html


how to use the id selector in html and css

Explain Program

Step  1] 

<!DOCTYPE html>

  • This declare the document type.
  • browser that the document is written in html

Step 2 ]

<html>.... . </html>

  • html is the root element of the html page.
  •  Every thing inside it is part of the webpage.

Step 3]

<head>
     
  <title> HTML iframe tag </title>
<style>
            #header{
                 background-color: lightblue;
                 color: black;
                 text-align: center;
                 padding: 20px;
            }
        </style>

    </head>

  1.   <head>  section 

  •   head section contains metadata about page. not visible on the page itself.
  •  <title> tag  title section set the title of the page shows the browser tab. 

   2.    CSS Style  

      ✔  #header  { . . . } 

      ✔ # symbol represent  selecting id element .

     ✔ #header                    :-   HTML element .

     ✔ background-color    :-   set the background color.

     ✔ color                        :-  set text color.

     ✔ text-align : center    :-   text center element.

     ✔padding: 20px         :- 20 pixels of space inside element. (top, bottom, right, left)

Step 4]

<body>

  • < body> tag  contains all the content visible to webpage.
  • <body> tag contains  all the visible content of the page.
  • inside <body> show the browser screen.

Step 5]

 
    <body>
<h2 id="header"> HTML id Attribute</h2>
<p> HTML id attribute  use unique
name on webpage </p>
        </body>

       

  •   <h2>                 :-   heading tag .
  • <id="header">   :-   unique identifier name
  • CSS <style>      :-  section style element id.

                header  id attribute appears 

  •  background -color 
  • color
  • text-align
  • padding 

Step 6]

closing the Tag

</body>

 </html>


how to use the id selector in html and css
Example 


<!DOCTYPE html>
<html>
    <head>
        <title> HTML id Attribute </title>
        <style>
            #header{
                 background-color: lightblue;
                 color: black;
                 text-align: center;
                 padding: 20px;
            }
        </style>
    </head>
    <body>
        <h2 id="header"> HTML id Attribute</h2>
        <p> HTML id attribute  use unique
name on webpage </p>
       
    </body>
</html>


how to use the id selector in html and css
Output





Comments

Post a Comment

Popular posts from this blog

HTML Tag

Image
 HTML Tag  Html basic tag:-   <!DOCTYPE html> Html  first line of the code <!DOCTYPE html> is called a doctype declaration the browser which version of HTML the page is written . Html tag using the doctype the HTML5 , the most up-to-date version of  HTML language.The DOCTYPE declaration of the instruction to web browser of HTML the page is written in.  <HTML>:- <Html>.   </html> <html> tag tells the browser  this is HTML document . The <html> tag represent the root of  HTML document. The <html> tag is the container for other HTML elements  <!DOCTYPE> . The HyperText Markup Language or HTML is the standard markup language for documents designed to be displayed in a web browser.HTML is a computer language that makes up most web pages and online applications. A hypertext text used to reference other pieces of text, while a markup language is a series of markings that tells w...
Read more

CSS Text Color Explained with Syntax and HTML Examples

Image
 What Is CSS Text Color This Blog You Will Learn  ஃ   What Is CSS Text Color  ஃ   Syntax   ஃ   Purpose of Text Color  ஃ    Real world Use Cases  ஃ    What Is CSS Text Color  Example    ஃ   Output What Is CSS Text Color CSS text color refers to the color applied to text content on a web page using the color property in CSS. It controls how text appears visually and plays a major role in readability, accessibility, branding, and user experience . Syntax  selector{   color:value; } Purpose of Text Color ✅ Make content readable.  ✅ Highlight important information. ✅ Match brand identity. ✅ Create visual hierarchy. ✅ Improve user experience. Real world Use Cases Highlighting error messages. Emphasizing headings. Branding and theme design improving content readability. ஃ  structure diagram examples What Is CSS Text Color Example   <! DOCTYPE html > ...
Read more

CSS Outline Offset Property with Practical Examples

Image
  How to Use CSS Outline Offset Property This Blog You Will Learn  ஃ   How to Use CSS Outline Offset Property ஃ  Syntax : ஃ   structure diagram examples ஃ  Example ஃ  Output How to Use CSS Outline Offset Property CSS outline-offset property is use to control the space between element.border and outline is line drawn around an element similar to border   ✅ Syntax : selector {   outline-offset: length; } ஃ   structure diagram examples   How to Use CSS Outline Offset Property Example <! DOCTYPE html > < html > < head > < style > .pro {   width : 250px ;   padding : 20px ;   margin : 40px ;   border : 3px solid red ;   outline : 4px solid blue ;   outline-offset : 15px ; } </ style > </ head > < body > < h2 > CSS Outline Offset Property </ h2 > < div class = "pro" >   < P > CSS Outline Offset Property. </ P > ...
Read more